Because both Tailoring and Leatherworking can create uncommon quality items at Apprentice proficiency, any item of that quality, or better, made through those professions is disenchantable. The amounts/quality of enchanting ingredients received are the same as any looted or vendor purchased items. Note that leatherworking requires a source of leather, whereas anyone can acquire fabric from humanoid mobs.

Take these tables as suggestions or guidelines. [Brown Linen Robe] is a very viable item to produce to disenchant, it is the cheapest disenchantable item a tailor can produce. However, you may find that producing a slightly more expensive item provides a skill-up for you after Brown Linen Robes have gone gray. [Soft-soled Linen Boots] they have a 5% chance to produce a small glimmering shard when disenchanted (but require a source for leather.)

Leatherworkers may prefer to make [Fine Leather Gloves]. These requires half the leather that [Embossed Leather Boots] require, but they require a [Cured Light Hide]. Cured light hide is generally available for a roughly similar price as light leather in the auction house, has lower supply, but also lower demand. You may find it is cheaper to make the gloves.

Tailors can produce disenchantable items starting at tailoring skill 30. All of these require fabric, farmable from humanoids.

Leatherworkers can produce disenchantable items starting at leatherworking skill 35, or at skill 40 using trainer recipes. All of these require leather, harvested primarily by skinners.

Blacksmiths can produce disenchantable items starting at blacksmithing skill 35. All of these require metal, and most require gems. Both ingredient types are harvested primarily by miners.

Jewelcrafters can produce disenchantable items starting at jewelcrafting skill 1. All of these require metal, and most require gems. Both ingredient types are harvested primarily by miners. Most jewelcrafting products (the rings and necklaces) are disenchantable.

Engineers can produce disenchantable items starting at engineering skill 50. Most of these require metal, many require gems, and may require other materials, such as leather or fabric.

Enchanter produced items are not disenchantable, even when similar items are available (wands) that are disenchantable.

All Essences can be looted off mobs, or transmuted by players with Alchemy skill level 275 or higher. Primals can be made by combining ten motes of a given element or transmuted, just as Essences. These transmutations require the use of a [Philosopher's Stone] and are on a 24 hour timer.